Customer Information Control System (CICS) - Glossário


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Adaptado por DORNELLES Carlos Alberto - Analista de Sistemas - Brasília DF. - cad_cobol@hotmail.com


Letra E
EBCDIC (extended binary-coded decimal interchange code)
A coded character set of 256 8-bit characters developed for the representation of textual data. EBCDIC is not compatible with ASCII character coding. See also ASCII.
ECB
See event control block (ECB).
ECDSA
See extended CICS dynamic storage area (ECDSA).
ECI
See external call interface.
ECKD device
See extended count-key-data device (ECKD device).
ECSA
See extended common system area (ECSA).
EDF
See execution diagnostic facility (EDF).
EEQE
See extended error queue element (EEQE).
EIB
See EXEC interface block (EIB).
EIP
See execution interface program (EIP).
EJB
See Enterprise JavaBeans.
ejb-jar file
A file containing Java classes for one or more enterprise beans, in compressed form, with a single deployment descriptor that describes the characteristics of each of the beans. See also CICS-deployed JAR file.
ELPA
See extended link pack area (ELPA).
emergency restart
The CICS backout facility for an automatic restart following a system failure. It restores the recoverable resources updated by each interrupted transaction to the condition they were in when the transaction started.
EMP
See event monitoring point (EMP).
empty range
The part of a VSAM file that is available for insertion of new records.
emulation program
A program that allows a host system to communicate with a workstation in the same way as it would with the emulated terminal. In IBM CICS Clients, the terminal emulation function allows client workstations to run CICS transactions that use 3270 data flows.
end bracket
In SNA, the value (binary 1) of the end bracket indicator in the request header (RH) of the first request of the last chain of a bracket; the value denotes the end of the bracket. See also conditional end bracket (CEB).
end-of-chain (EOC)
In SNA, an exception condition that occurs when the end-of-chain indicator is set in the request/response unit (RU) returned from VTAM.
end-of-day statistics
(1) In CICS Transaction Server, CICS statistics written to an SMF data set at the quiesce or termination of a CICS run, or at a user-specified time. See also interval statistics, unsolicited statistics.
(2) In CICS/VSE, CICS statistics written to the CSSL transient data destination at the quiesce or termination of a CICS run, or at a user-specified time. End-of-day statistics are reset by an end-of-day statistics collection.
end-of-file (EOF)
On a data medium, a coded character indicating the end of the medium.
end-of-file label
In a file, an internal label indicating the end of the file.
end-of-message (EOM)
In a DBCTL multisegment command, the ENTER key, which is the indicator that defines the end of the last or only segment. See also end-of-segment (EOS).
end-of-segment (EOS)
In a DBCTL multisegment command, the command recognition character followed by the ENTER key, which indicates the end of each segment preceding the last segment. See also end-of-message (EOM).
end session handler
A user-provided part of a FEPI application that handles end of conversation and end of session processing.
enqueued
The state of a task scheduled to update a physical segment of a database when another task is currently accessing that segment.
enterprise bean
A component that implements a business task or business entity and resides in an EJB container. Entity beans, session beans, and message-driven beans are all enterprise beans. (Sun)
Enterprise JavaBeans (EJB)
A component architecture defined by Sun Microsystems for the development and deployment of object-oriented, distributed, enterprise-level applications.
Enterprise Systems Architecture (ESA/370, ESA)
The extension to the IBM System/370 architecture that includes the advanced addressability feature.
entity
A user, group, or resource that is defined to RACF.
entity bean
In EJB, an enterprise bean that represents persistent data maintained in a database. Each entity bean carries its own identity. (Sun) There are two types of entity beans: container-managed persistence (CMP) entity beans and bean-managed persistence (BMP) entity beans. See also session bean.
entry-sequenced data set (ESDS)
A VSAM data set whose records are physically in the same order in which they were put in the data set. It is processed by addressed direct access or addressed sequential access and has no index. New records are added at the end of the data set.
entry thread
A thread which is used by the CICS DB2 attachment facility for transactions with special requirements, such as high priority transactions, or transactions with special accounting needs. See also command thread and pool thread.
Environmental Record Editing and Printing (EREP)
The program that makes the data contained in the system recorder file available for further analysis.
Environment Services System Services (ESSS)
A component of CICSPlex SM that implements the formal MVS/ ESA subsystem functions required by the product. ESSS provides cross-memory services, data space management, connection services, and lock management. An ESSS system address space is created at CICSPlex SM initialization and remains in the MVS image for the life of the IPL.
EOC
See end-of-chain (EOC).
EOF
See end-of-file (EOF).
EOM
See end-of-message (EOM).
EOS
See end-of-segment (EOS).
EPI
See external presentation interface (EPI).
EPVT
See error processor vector table (EPVT).
equivalent
In an XRF environment, the mutual attribute of any two DBCTL subsystems that are members of the same RSE. See also recoverable service element (RSE) and recoverable service table (RST).
ER
See exception response (EX, ER).
erase-on-scratch
The physical overwriting of data on a DASD data set when the data set is deleted (scratched).
ERDSA
See extended read-only dynamic storage area (ERDSA).
EREP
See Environmental Record Editing and Printing (EREP)
error processor vector table (EPVT)
A table containing addresses of the error group processors invoked by the routing mechanism of the node error program.
error status block (ESB)
A recording area in a node error block (NEB) of the node error table.
error status element (ESE)
In the terminal error block of the terminal error table, a field that records occurrences of a particular type of error associated with a terminal.
ESA
See Enterprise Systems Architecture (ESA, ESA/370;).
ESA/370
See Enterprise Systems Architecture (ESA, ESA/370;).
ESA mode
An operation mode of the supervisor (generated with MODE=ESA) of a VSE system. Such a supervisor will run on a 370-XA or Enterprise Systems Architecture processor and provides support for multiple virtual address spaces, the channel subsystem, and more than 16MB of real storage.
ESB
See error status block (ESB).
ESDS
See entry-sequenced data set (ESDS).
ESDSA
See extended shared dynamic storage area (ESDSA).
ESE
See error status element (ESE).
ESM
See external security manager (ESM).
ESQA
See extended system queue area (ESQA).
ESSS
See Environment Services System Services (ESSS).
ETR
See external throughput rate (ETR).
EUDSA
See extended user dynamic storage area (EUDSA).
event
A means by which CICS business transaction services inform an activity that an action is required or an action has completed. An activity can define events (by naming them) about which it wants to be informed.
event control block (ECB)
A control block used to represent the status of an event.
event monitoring point (EMP)
Point in the CICS code at which CICS monitoring data is collected. There are two types of EMP: system-defined EMP, which collects predetermined CICS monitoring information and which cannot be relocated, and user-defined EMP, which collects task monitoring information. See also monitoring control table (MCT).
event pool
The set of events recognized by an activity (system events and user events that have been defined to it). Each activity has an event pool associated with it. An activity's event pool is initialized when the activity is created, and deleted when the activity is deleted. Event-related commands such as DEFINE INPUT EVENT and DEFINE COMPOSITE EVENT operate on the event pool associated with the current activity.
EX
See exception response (EX, ER).
exception
An abnormal condition such as an I/O error encountered in processing a data set or a file, or using any resource.
exception class data
CICS monitoring information on exception conditions raised by a transaction, such as queuing for VSAM strings or waiting for temporary storage. This data highlights possible problems in system operations.
exception response (EX, ER)
In SNA, a value in the form-of-response-requested field of the request header that directs the receiver of the request to return a response only if the request is unacceptable as received or if the request cannot be processed; that is, only a negative response can be returned. See also definite response (DR), no response.
exception trace entry
An entry made to the internal trace table and any other active trace destinations when CICS detects an exception condition. It gives information about what was happening at the time the failure occurred and what was being used.
exchange lognames
The process by which, when an APPC connection is established between two CICS systems (or reestablished after failure), the name of the system log currently in use on each system is passed to the partner. The exchange lognames process affects only synclevel 2 conversations. It is used to detect the situation where a failed CICS has been communicating with a partner that is waiting to perform session recovery, and is restarted using a different system log.
EXCI
See external CICS interface (EXCI).
exclusive control
A type of access control in which VSAM keeps control of the control interval (CI) containing a specific record until a REWRITE, UNLOCK, or DELETE command is issued for that record. The purpose of exclusive control is to protect against simultaneous update.
exclusive intent
In IMS, the scheduling intent type that prevents an application program from being scheduled concurrently with another application program.
exclusive-key storage
In MVS key-controlled storage protection, storage with storage keys other than open-key.
exclusive use
A means by which CICS and data managers, such as SQL/DS, combine to prevent concurrent updates of resources. A transaction updating a recoverable resource gets control of that resource until it terminates or indicates that it wants to commit those changes with a syncpoint command. Other transactions requesting the same resource must wait until the first transaction has finished with it.
EXEC interface
See application programming interface (API).
EXEC interface block (EIB)
A control block associated with each task in a CICS command-level environment. The EIB contains information that is useful during the execution of an application program (such as the transaction identifiers) and information that is helpful when a dump is being used to debug a program.
EXEC interface stub
The stub link-edited with every command-level program. It is part of the CALL interface between EXEC CICS commands and the CICS EXEC interface program (EIP).
execution diagnostic facility (EDF)
A facility used for testing application programs interactively online, without making any modifications to the source program or to the program preparation procedure. The facility intercepts execution of the program at various points and displays information about the program at these points. Also displayed are any screens sent by the user program, so that the programmer can converse with the application program during testing just as a user would do on the production system.
execution interface program (EIP)
Converts high-level (command-level) requests into the corresponding internal macro-level requests.
execution key
The MVS storage protection key in which CICS executes a program. The execution key for a program can be CICS key (key 8) or user key (key 9).
exit point
A specific point in a system function or program where control may be passed to one or more specified exit programs.
exit programming interface (XPI)
Provides global user exit programs with access to some CICS services. It consists of a set of function calls that can be used in user exit programs to extend CICS functions.
expiration time
The time at which a time-controlled CICS function is to be started.
extended addressing
The use of 31-bit addresses (above the 16MB line) which multiplies by 2 to the power of 7 the range of virtual storage that can be addressed.
extended binary-coded decimal interchange code
See EBCDIC.
extended CICS dynamic storage area (ECDSA)
Storage area allocated above the 16MB line for CICS code and control blocks that are eligible to reside above the 16MB line but that are not eligible for the ERDSA (that is, they are not reentrant.) See Putting application programs above the 16MB linefor more information.
extended common system area (ECSA)
A major element of MVS/ESA virtual storage above the 16MB line. This area contains pageable system data areas that are addressable by all active virtual storage address spaces. It duplicates the common system area (CSA) which exists below the 16MB line.
extended count-key-data device (ECKD device)
A disk storage device that has a data transfer rate faster than some processors can utilize. A specialized channel program is needed to convert ordinary CKD channel programs for use with an ECKD device.
extended error queue element (EEQE)
Data that describes an I/O error on a local DL/I database. EEQEs are recorded by CICS in the global catalog. CICS uses EEQEs to provide I/O error handling in XRF takeovers and in all non-XRF restarts, including cold starts.
extended link pack area (ELPA)
A major element of MVS/ESA virtual storage above the 16MB line. It duplicates the link pack area (LPA). See Preparing to install CICS modules in the MVS link pack areafor more information. See also extended addressing.
extended private area
An element of MVS/ESA virtual storage above the 16MB line. This area duplicates the private area except for the 16KB system region area. See The CICS private areafor more information.
extended read-only dynamic storage area (ERDSA)
An area of storage allocated above the 16MB line and used for eligible, reentrant CICS and user application programs, which must be link-edited with the RENT and RMODE(ANY) attributes. The storage is obtained in key 0, non-fetch-protected storage, if the system initialization parameters include RENTPGM=PROTECT. If RENTPGM=NOPROTECT is specified, the ERDSA is in CICS-key storage.
Extended Recovery Facility (XRF)
A facility that increases the availability of CICS transaction processing, as seen by the end users. Availability is improved by having a second CICS system (the alternate system) ready to continue processing the workload, if and when particular failures that disrupt user services occur on the first system (the active system) .
extended restart (XRST)
An IMS/ESA system service call that can request that a program restarts normally or from a specific checkpoint ID, a time/date stamp, or (BMPs only) the last checkpoint issued. Extended restart can be requested by EXEC DLI commands or CALL DLI calls in a batch program or a BMP.
extended shared dynamic storage area (ESDSA)
The user-key storage area for any non-reentrant user-key RMODE(ANY) programs, and also for any storage obtained by programs issuing CICS GETMAIN commands for storage above the 16MB boundary with the SHARED option. For more details about the DSALIM and EDSALIM SIT parameters that control the overall limits of DSA and EDSA storage, see Adjusting the limits for dynamic storage areas. For more details of how the major elements of CICS and MVS storage are related, see Storage requirements for a CICS region.
extended system queue area (ESQA)
A major element of MVS/ESA virtual storage above the 16MB line. This storage area contains tables and queues relating to the entire system. It duplicates above the 16MB line the system queue area (SQA). See MVS storagefor more information.
extended user dynamic storage area (EUDSA)
Storage area allocated above the 16MB line, used for data and for user application programs that execute in user-key and are eligible to reside above the 16MB line, but that are not eligible for the ERDSA (that is, not reentrant.)
extensible markup language (XML)
A standard metalanguage for defining markup languages. XML uses tags to define the structure of data, leaving the interpretation of the data to the application that reads it.
extent
A continuous space on disk or diskette that is occupied by or reserved for a particular data set, data space, or file.
external call interface (ECI)
An application programming interface that allows a non-CICS program running on a client to call a CICS program located on a CICS server. Data is exchanged in the COMMAREA as for normal CICS interprogram communication.
external CICS interface (EXCI)
A CICS application programming interface that helps to make CICS applications more easily accessible from non-CICS environments. It enables a non-CICS program (a client program) running in MVS to call a program (a server program) running in a CICS Transaction Server region and to pass and receive data by means of a communications area. The CICS program is invoked as if linked-to by another CICS program. For programming information about EXCI, see The EXCI user-replaceable module
external presentation interface (EPI)
An application programming interface that allows a non-CICS client program to appear to a CICS server as one or more standard 3270 terminals. This enables the client to access, for example, CICS on System/390 transactions written for 3270 terminals, without needing to change the System/390 code. See also CICS Clients
external response time
Elapsed time from pressing the ENTER key or another AID key until the action requested by the terminal user is completed, and the next entry can be started. Elapsed time between the end of an enquiry or demand on a computer system and the beginning of the response.
external security manager (ESM)
A security product that performs security checking on users and resources. RACF is an example of an ESM.
external throughput rate (ETR)
The amount of useful work completed in a unit of time (for example, the number of transactions completed per elapsed second).
extrapartition transient data
A CICS facility for temporarily saving data in the form of queues, called destinations. See also intrapartition transient data (TD).